[PATCH v2] net/nfp: initialize the flbufsz
Peng Zhang
peng.zhang at corigine.com
Wed Jun 15 12:14:17 CEST 2022
When the testpmd start-up, it will check MTU range,
if MTU > flubfsz, it will lead testpmd start fail.
Because the hw->flbufsz doesn't have the initialized
value, so it will lead the bug.
Fixes: 97a30c4d4c7b ("net/nfp: make sure MTU is never larger than mbuf size")
Cc: stable at dpdk.org
Signed-off-by: Peng Zhang <peng.zhang at corigine.com>
Signed-off-by: Chaoyong He <chaoyong.he at corigine.com>
---
drivers/net/nfp/nfp_ethdev.c | 1 +
drivers/net/nfp/nfp_ethdev_vf.c | 1 +
2 files changed, 2 insertions(+)
diff --git a/drivers/net/nfp/nfp_ethdev.c b/drivers/net/nfp/nfp_ethdev.c
index 9166f65da3..1a9f7581a7 100644
--- a/drivers/net/nfp/nfp_ethdev.c
+++ b/drivers/net/nfp/nfp_ethdev.c
@@ -502,6 +502,7 @@ nfp_net_init(struct rte_eth_dev *eth_dev)
hw->cap = nn_cfg_readl(hw, NFP_NET_CFG_CAP);
hw->max_mtu = nn_cfg_readl(hw, NFP_NET_CFG_MAX_MTU);
hw->mtu = RTE_ETHER_MTU;
+ hw->flbufsz = RTE_ETHER_MTU;
/* VLAN insertion is incompatible with LSOv2 */
if (hw->cap & NFP_NET_CFG_CTRL_LSO2)
diff --git a/drivers/net/nfp/nfp_ethdev_vf.c b/drivers/net/nfp/nfp_ethdev_vf.c
index 0034d68ea6..0781f34764 100644
--- a/drivers/net/nfp/nfp_ethdev_vf.c
+++ b/drivers/net/nfp/nfp_ethdev_vf.c
@@ -369,6 +369,7 @@ nfp_netvf_init(struct rte_eth_dev *eth_dev)
hw->cap = nn_cfg_readl(hw, NFP_NET_CFG_CAP);
hw->max_mtu = nn_cfg_readl(hw, NFP_NET_CFG_MAX_MTU);
hw->mtu = RTE_ETHER_MTU;
+ hw->flbufsz = RTE_ETHER_MTU;
/* VLAN insertion is incompatible with LSOv2 */
if (hw->cap & NFP_NET_CFG_CTRL_LSO2)
--
2.27.0
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